ref_transaction_create(): check that new_sha1 is valid

Creating a reference requires a new_sha1 that is not NULL and not
null_sha1.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Michael Haggerty 2015-02-17 18:00:19 +01:00 committed by Junio C Hamano
parent a933c23e66
commit f04c5b5522

2
refs.c
View File

@ -3690,6 +3690,8 @@ int ref_transaction_create(struct ref_transaction *transaction,
unsigned int flags, const char *msg,
struct strbuf *err)
{
if (!new_sha1 || is_null_sha1(new_sha1))
die("BUG: create called without valid new_sha1");
return ref_transaction_update(transaction, refname, new_sha1,
null_sha1, flags, msg, err);
}